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RubyとJIT
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na-o-ys
January 31, 2018
Programming
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RubyとJIT
na-o-ys
January 31, 2018
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Transcript
Ruby, YARV, ͦͯ͠JIT 2018/01/29 @na_o_ys
࣌ḪΓ
Ruby 3x3 @RubyKaigi 2015 https://www.youtube.com/watch?v=E9bO1uqs4Oc
Evan Phoenix ʮJITͨ͠Β?ʯ @RubyKaigi 2015 • Evan Phoenix • Rubinius
ͷ࡞ऀ • Rubinius Ͱ LLVM Λར༻ͨ͠ JIT Λ࣮ࡁ Έͩͬͨ
ͦͯ͠ 2 ޙ, 2018/1ݱࡏ
͍͔ͭ͘ͷ JIT ϓϩδΣΫτ • MJIT • Vladimir Makarovࢯ • YARVΛ٫͠,
ϨδελϕʔεVMʹ • CίʔυΛಈతੜ͠, ࠷దԽ, ίϯύΠϧ • YARV-MJIT • k0kubunࢯ • YARV(ελοΫϕʔεVM)ͷ··, MJITͷJITػߏΛಋೖ
YARVͱ (͓͞Β͍) • Ruby 1.9.0 Ͱ࠾༻͞ΕͨRubyॲཧܥ • ߴԽΛୡ • https://speakerdeck.com/naoys/yarvfalsezui-
shi-hua-nituitediao-beta
MJIT
MJIT (1/2) • https://github.com/vnmakarov/ruby/tree/rtl_mjit_branch • YARV٫ • ελοΫϕʔεVMͷYARVΛࣺͯ, ϨδελϕʔεVMΛߏங •
Method JIT • ϝιου୯ҐͰͷJITίϯύΠϧ • CίʔυΛಈతੜ͠, ࠷దԽ & ίϯύΠϧ͢Δ
MJIT (2/2) • ͳͥϨδελϕʔεVM͔? • ୈҰʹ, ίʔυղੳͱ࠷దԽΛߦ͏ͨΊ • ελοΫϕʔε͜Εʹద͞ͳ͍ •
ୈೋʹ, ॲཧͷߴԽͷͨΊ • ελοΫϕʔεϝϞϦͷແବͳར༻͕ଟ͍ • ελοΫϕʔε໋ྩߦ͕ଟ͘ͳΔ
MJITͷਐḿ • RubyKaigi 2017 (2017/10) • http://gihyo.jp/news/report/01/rubykaigi2017/0003? page=2 • TL;DR
• Ruby 2 ͱൺ͔ͯͳΓͷߴԽ (ᐆດ) Λୡ • ʮ࣮ͱͯ͠ख़͢Δʹ͋ͱ1΄΅͔͔ΔͩΖ͏ʯ
YARV-MJIT
YARV-MJIT • MJITͷJITػߏͷҰ෦͚ͩΛಋೖ͢Δ • YARV͍ଓ͚Δ • ͶΒ͍ • 1. ϨδελϕʔεͷϝϦοτΛ໌֬Խ
• ελοΫϕʔεͩͱ࣮ࡍͲΕ͘Β͍͍ɾਏ͍ʁ • 2. MJITͷҠߦΛεϜʔζʹ͢Δ • JIT͕ೖΔλΠϛϯάͰ͍͖ͳΓYARV -> ϨδελϕʔεVMͷϦϓϨʔε ͕͓͖Δͷා͘ͳ͍ʁ
YARV-MJITͷਐḿ • https://github.com/ruby/ruby/pull/1782 • https://bugs.ruby-lang.org/issues/14235 • TL;DR • Ruby 2.6
Ͱग़͍ͨ͠ • -j, —jit ΦϓγϣϯͰ༗ޮɾແޮΓସ͑ΒΕΔ
·ͱΊ • RubyʹJIT͕ೖΔʂ • ͍·ͷͱ͜Ζͷະདྷ༧ਤ • ·ͣ͡Ίʹ, YARVΛҡ࣋ͨ͠··ͰJIT͕ೖΔ • Ruby
2.6 ʹͰʁ • ͍ͦͯۙ͠কདྷ, YARV͕Ϩδελϕʔεʹஔ͖͑ΒΕͨ ΑΓ͍JIT͕ೖΔ